Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

74°F

23°C

Humidity 34%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 19 Apr 04:10 PM PDT
Extended Forecast for

2 Miles SSW Cupertino CA

  • Tonight

    Tonight: A 10 percent chance of rain after 5am.  Partly cloudy, with a low around 47. Southwest wind 12 to 17 mph becoming south 5 to 10 mph after midnight. Winds could gust as high as 22 mph.

    Low: 47 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 4pm.  Mostly sunny, with a high near 67. Breezy, with a south southwest wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Chance Rain
    then Rain
    Likely and
    Breezy

  • Monday Night

    Monday Night: Rain.  Low around 50. Breezy, with a south southwest wind 19 to 24 mph becoming light south  after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm between 11am and 5pm, then a chance of showers and thunderstorms after 5pm.  High near 62. South southwest wind 5 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain after 8pm.  Mostly cloudy, with a low around 47. Southwest wind 5 to 9 mph becoming light  after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of rain.  Mostly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 10 percent chance of rain after 5am. Partly cloudy, with a low around 47. Southwest wind 12 to 17 mph becoming south 5 to 10 mph after midnight. Winds could gust as high as 22 mph.
Monday
Rain likely, mainly after 4pm. Mostly sunny, with a high near 67. Breezy, with a south southwest wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 50. Breezy, with a south southwest wind 19 to 24 mph becoming light south after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm between 11am and 5pm, then a chance of showers and thunderstorms after 5pm. High near 62. South southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain after 8pm. Mostly cloudy, with a low around 47. Southwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Cupertino CA
 37.28°N 122.06°W (Elev. 666 ft)
1:26 pm PDT Apr 19, 2026
4pm PDT Apr 19, 2026-6pm PDT Apr 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database